Threat detection apparatus and threat detection method therefor for wireless communication system

Abstract

A threat detection apparatus and a threat detection method thereof for a wireless communication system are provided. The threat detection apparatus receives an observed time difference of arrival (OTDOA) message for positioning a user equipment (UE) from a serving base station (BS), and determines that the UE connects to a false BS when the identity of the serving BS is not on the identity list. If the identity of the serving BS is on the identity list, the threat detection apparatus calculates a first distance according to the measurement report message transmitted from the UE, and calculatesa second distance between the UE and the serving BS according to the OTDOA message. When the difference between the first distance and the second distance is larger than a threshold, the threat detection apparatus determines that the UE connects to the false BS.

Description

【Technical field】 [0001] The invention relates to a threat detection device and a threat detection method for a wireless communication system. Specifically, the threat detection device of the present invention judges whether the user equipment is connected to the fake base station based on the observed time difference of arrival (OTDOA). 【Background technique】 [0002] With the rapid development of wireless communication technology, various applications of wireless communication have filled people's lives, and people's demand for wireless communication is also increasing. With the popularization of wireless communication devices, malicious people began to monitor various signaling transmissions in the wireless communication system through fake base stations to attack user devices, base stations or core networks in the wireless communication system, or steal privacy from user devices. misappropriation or fraud of data. [0003] The counterfeit base station defense mechanism...

AI Technical Summary

Problems solved by technology

However, these authentication mechanisms need to change the protocol of the wireless communication system. In this case, if the core network, base station, and user equipment are adjusted asynchronously (for example: updating firmware), they will not be able to support these authentication mechanisms to prevent fake base stations.

Therefore, the currently proposed defense mechanism for pseudo-base stations needs to consume huge engineering costs, which is obviously not in line with economic benefits

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